JPH0334244B2 - - Google Patents
Info
- Publication number
- JPH0334244B2 JPH0334244B2 JP56093307A JP9330781A JPH0334244B2 JP H0334244 B2 JPH0334244 B2 JP H0334244B2 JP 56093307 A JP56093307 A JP 56093307A JP 9330781 A JP9330781 A JP 9330781A JP H0334244 B2 JPH0334244 B2 JP H0334244B2
- Authority
- JP
- Japan
- Prior art keywords
- noise
- volume
- signal
- time constant
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012937 correction Methods 0.000 claims description 23
- 230000003321 amplification Effects 0.000 claims description 21
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 21
- 230000007423 decrease Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 208000006042 optic atrophy 5 Diseases 0.000 description 3
- 208000033707 Early-onset X-linked optic atrophy Diseases 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 208000025019 optic atrophy 2 Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 208000006497 optic atrophy 6 Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Landscapes
- Control Of Amplification And Gain Control (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9330781A JPS57207410A (en) | 1981-06-16 | 1981-06-16 | Automatic sound volume correcting device |
US06/387,895 US4476571A (en) | 1981-06-15 | 1982-06-14 | Automatic sound volume control device |
DE19823222495 DE3222495A1 (de) | 1981-06-15 | 1982-06-15 | Selbsttaetige lautstaerke-regelvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9330781A JPS57207410A (en) | 1981-06-16 | 1981-06-16 | Automatic sound volume correcting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57207410A JPS57207410A (en) | 1982-12-20 |
JPH0334244B2 true JPH0334244B2 (de) | 1991-05-22 |
Family
ID=14078670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9330781A Granted JPS57207410A (en) | 1981-06-15 | 1981-06-16 | Automatic sound volume correcting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57207410A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10018666A1 (de) | 2000-04-14 | 2001-10-18 | Harman Audio Electronic Sys | Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals |
JP2006148541A (ja) * | 2004-11-19 | 2006-06-08 | Denso Corp | ナビゲーション装置およびプログラム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5179537A (en) * | 1975-01-07 | 1976-07-10 | Mizukami Shizuya | Terebijonnadoni mochiiru jidoonryochoseisochi |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4917950U (de) * | 1972-05-26 | 1974-02-15 |
-
1981
- 1981-06-16 JP JP9330781A patent/JPS57207410A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5179537A (en) * | 1975-01-07 | 1976-07-10 | Mizukami Shizuya | Terebijonnadoni mochiiru jidoonryochoseisochi |
Also Published As
Publication number | Publication date |
---|---|
JPS57207410A (en) | 1982-12-20 |
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